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Contract OI history

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Mar 19, 2027 EXPIRATION

ZS $185.00 Put

ZS270319P00185000

Latest saved OI564Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $185.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5642820 2026-10-09: 77 OI2026-10-12: 77 OI2026-10-14: 563 OI2026-10-15: 563 OI2026-10-16: 564 OI2026-10-21: 564 OI2026-10-23: 564 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20265640
Oct 21, 2026Viewing5640
Oct 16, 2026564+1
Oct 15, 20265630
Oct 14, 2026563+486
Oct 12, 2026770
Oct 09, 202677No prior observation